Patents by Inventor David Allen Dockweiler
David Allen Dockweiler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11933141Abstract: Systems and methods of the present disclosure relate to wellbore scraping operations. A method comprises running a scraper tool into a wellbore with blades retracted; dropping a ball into an expandable seat of the scraper tool to build pressure; pumping fluid into the scraper tool to deploy a mandrel to compress a spring to rotate a j-slot to a second position from a first position to extend the blades; building pressure until the ball is released from the expandable seat; and moving the mandrel to a third position on the j-slot to lock the extended blades in place.Type: GrantFiled: June 8, 2022Date of Patent: March 19, 2024Assignee: Halliburton Energy Services, Inc.Inventor: David Allen Dockweiler
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Patent number: 11891870Abstract: Provided, in one aspect, is a downhole magnetic debris removal apparatus. The downhole magnetic debris removal apparatus, in one aspect, includes a housing having a longitudinal axis, and a plurality of magnets arranged as one or more Halbach arrays of magnets coupled to the housing, the one or more Halbach arrays of magnets having a strong side and a weak side.Type: GrantFiled: March 9, 2021Date of Patent: February 6, 2024Assignee: Halliburton Energy Services, Inc.Inventors: Peter Reid Maher, Robert W. Bennett, David Allen Dockweiler
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Publication number: 20230399921Abstract: Systems and methods of the present disclosure relate to wellbore scraping operations. A method comprises running a scraper tool into a wellbore with blades retracted; dropping a ball into an expandable seat of the scraper tool to build pressure; pumping fluid into the scraper tool to deploy a mandrel to compress a spring to rotate a j-slot to a second position from a first position to extend the blades; building pressure until the ball is released from the expandable seat; and moving the mandrel to a third position on the j-slot to lock the extended blades in place.Type: ApplicationFiled: June 8, 2022Publication date: December 14, 2023Applicant: Halliburton Energy Services, Inc.Inventor: David Allen Dockweiler
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Publication number: 20230366311Abstract: A downhole valve position sensing system includes a magnetic material that is shiftable by an actuation member of a downhole valve to a plurality of positions along a downhole valve from a first position of the plurality of positions along the downhole valve. The downhole valve position sensing system also includes a sensor assembly that is mechanically coupled to the downhole valve and comprising a magnetic sensor that is configured to detect a magnetic signal generated by the magnetic material at a set of positions of the plurality of positions along the downhole valve.Type: ApplicationFiled: May 11, 2022Publication date: November 16, 2023Applicant: Halliburton Energy Services, Inc.Inventors: Michael Linley FRIPP, Luke William HOLDERMAN, David Allen DOCKWEILER
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Patent number: 11391120Abstract: A valve assembly employed in subterranean wellbore systems includes a flapper member biased to a closed position by a pair of opposed wire springs. The wire springs provide sufficient torque to ensure robust operation of the flapper member and permit sufficient fluid flow through the limited space available in the valve assembly. A pair of symmetrical pair of wire springs may be robustly manufactured and individually installed without unnecessary accumulation of manufacturing tolerances or errors, thereby providing predictable torque levels to the flapper member. The wire springs may be secured in blind holes or other features defined in a circumferential surface of the flapper member to ensure the springs remain engaged with the flapper member throughout the operation of the valve assembly.Type: GrantFiled: April 26, 2021Date of Patent: July 19, 2022Assignee: Halliburton Energy Services, Inc.Inventors: Xiaoguang Allan Zhong, Shobeir Pirayeh Gar, David Allen Dockweiler
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Patent number: 11162322Abstract: A wellbore isolation device is provided which includes a tubular body having an external surface and an inner bore formed longitudinally through the tubular body. The tubular body has an expanding section transitionable from an initial configuration to an expanded configuration. One or more fins project radially from the external surface of the expanding section. The fins are anchorable into surrounding surfaces when the expanding section transitions to the expanded configuration. A plugging element is positioned, after the expanding section is in the expanded configuration, to restrict fluid communication through the inner bore.Type: GrantFiled: April 5, 2018Date of Patent: November 2, 2021Assignee: HALLIBURTON ENERGY SERVICES, INC.Inventors: David Allen Dockweiler, Tyler Joseph Norman
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Publication number: 20210285301Abstract: Provided, in one aspect, is a downhole magnetic debris removal apparatus. The downhole magnetic debris removal apparatus, in one aspect, includes a housing having a longitudinal axis, and a plurality of magnets arranged as one or more Halbach arrays of magnets coupled to the housing, the one or more Halbach arrays of magnets having a strong side and a weak side.Type: ApplicationFiled: March 9, 2021Publication date: September 16, 2021Inventors: Peter Reid Maher, Robert W. Bennett, David Allen Dockweiler
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Publication number: 20210277736Abstract: An operation may require isolation of a wellbore using multiple barriers. A single-run multiple barrier system may be deployed in a wellbore to position a first barrier at a first depth and a second barrier at second depth above the first barrier in the wellbore during a single run of a wellbore tubular string. The first barrier is coupled to a first miming tool. A wellbore tubular string segment couples the first miming tool is coupled to the second barrier. The second barrier is coupled to a second running tool that couples to the wellbore tubular string. The second barrier is locked until the first barrier is independently set at the first depth to prevent the second barrier from being set until the second depth is reached. Setting both barriers in a single run increases efficiency in an operation including reducing costs and time for completion of the operation.Type: ApplicationFiled: June 13, 2018Publication date: September 9, 2021Inventors: David Allen Dockweiler, Garry Martin Howitt, William Ellis Standridge
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Publication number: 20210140263Abstract: A wellbore isolation device is provided which includes a tubular body having an external surface and an inner bore formed longitudinally through the tubular body. The tubular body has an expanding section transitionable from an initial configuration to an expanded configuration. One or more fins project radially from the external surface of the expanding section. The fins are anchorable into surrounding surfaces when the expanding section transitions to the expanded configuration. A plugging element is positioned, after the expanding section is in the expanded configuration, to restrict fluid communication through the inner bore.Type: ApplicationFiled: April 5, 2018Publication date: May 13, 2021Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: David Allen DOCKWEILER, Tyler Joseph NORMAN
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Patent number: 10633942Abstract: A downhole tool comprising a bidirectional slip having a slip frame and at least two slip banks. The slip frame including a plurality of slats spaced radially about a center ring. The slip banks have a first gripping bank and a second gripping bank. The first gripping bank is slideably received in a first slot in the slip frame, and the second gripping bank is slideably received in a second slot in the slip frame such that the slip bank has a set position in which the first gripping bank and second gripping bank extend radially outward from the slip frame so as to be able to engage the casing, and the slip bank has an unset position in which the slip bank is positioned radially inward from the set position.Type: GrantFiled: August 27, 2015Date of Patent: April 28, 2020Assignee: Halliburton Energy Services, Inc.Inventor: David Allen Dockweiler
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Patent number: 10577887Abstract: A downhole tool for use in a subterranean well having a casing therein. The downhole tool has a mandrel, a wedge, a slip bank and a pre-set mechanism. The wedge is disposed about the mandrel and in sliding relationship with the mandrel such that the wedge can slide between an unset position and a set position. The slip bank is associated with the wedge such that, when the slip wedge is in the unset position, the slip bank is in a radially inward position and does not engage the casing, and when the slip wedge is in the set position, the slip bank is in a radially outward position and engages the casing. The pre-set mechanism has a first detent ring located between the first wedge and the mandrel and positioned at least partially in a groove in the mandrel. The detent ring prevents the wedge from moving from the unset position to the set position until a load on the mandrel exceeds a predetermined force.Type: GrantFiled: August 27, 2015Date of Patent: March 3, 2020Assignee: Halliburton Energy Services, Inc.Inventor: David Allen Dockweiler
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Patent number: 10533392Abstract: A wellbore isolation device includes a wedge member that defines an outer surface and a barrel seal having a cylindrical body that provides an inner radial surface and an outer radial surface. The inner radial surface is engageable with the outer surface of the wedge member. The barrel seal further includes a plurality of longitudinally extending grooves defined through the body in an alternating configuration at opposing ends of the body. A raised lip protrudes radially from the outer radial surface and circuitously extends about a circumference of the body. A plurality of slip buttons is positioned in a corresponding plurality of holes defined in the outer radial surface of the body. At least one of the wedge member and the barrel seal is made of a degradable material that degrades when exposed to a wellbore environment.Type: GrantFiled: April 1, 2015Date of Patent: January 14, 2020Assignee: Halliburton Energy Services, Inc.Inventors: Zachary William Walton, Michael Linley Fripp, John Charles Gano, Zachary Ryan Murphree, David Allen Dockweiler
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Patent number: 10352131Abstract: An apparatus and method relating to down-hole production equipment for use in an oil well environment is provided. The apparatus and method are for selectively isolating fluid flow through a production packer or other down-hole tubular device. The apparatus and method use a ball valve, which is moved from an open position to a closed position by lateral or axial movement of the tubing string as opposed to by rotating the tubing string.Type: GrantFiled: December 17, 2014Date of Patent: July 16, 2019Assignee: Halliburton Energy Services, Inc.Inventor: David Allen Dockweiler
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Publication number: 20180216429Abstract: A downhole tool held in a wellbore with a unidirectional slip and a bidirectional slip. The bi-directional slip has a slip frame and at least two slip banks. The slip frame comprises a center ring and a plurality of slats extending longitudinally uphole and downhole from the center ring and spaced radially about the center ring so as to define at least two pairs of slots. Each pair of slots has a first slot extending longitudinally uphole from the center ring and a second slot extending longitudinally downhole from the center ring. The slip banks have a first gripping bank, a second gripping bank and a groove between the first gripping bank and second gripping bank. The first gripping bank and second gripping bank each have an outer surface configured to grip the casing.Type: ApplicationFiled: August 27, 2015Publication date: August 2, 2018Inventor: David Allen Dockweiler
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Publication number: 20180209242Abstract: A downhole tool for use in a subterranean well having a casing therein. The downhole tool has a mandrel, a wedge, a slip bank and a pre-set mechanism. The wedge is disposed about the mandrel and in sliding relationship with the mandrel such that the wedge can slide between an unset position and a set position. The slip bank is associated with the wedge such that, when the slip wedge is in the unset position, the slip bank is in a radially inward position and does not engage the casing, and when the slip wedge is in the set position, the slip bank is in a radially outward position and engages the casing. The pre-set mechanism has a first detent ring located between the first wedge and the mandrel and positioned at least partially in a groove in the mandrel. The detent ring prevents the wedge from moving from the unset position to the set position until a load on the mandrel exceeds a predetermined force.Type: ApplicationFiled: August 27, 2015Publication date: July 26, 2018Inventor: DAVID ALLEN DOCKWEILER
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Publication number: 20180038193Abstract: A wellbore isolation device includes a wedge member that defines an outer surface and a barrel seal having a cylindrical body that provides an inner radial surface and an outer radial surface. The inner radial surface is engageable with the outer surface of the wedge member. The barrel seal further includes a plurality of longitudinally extending grooves defined through the body in an alternating configuration at opposing ends of the body. A raised lip protrudes radially from the outer radial surface and circuitously extends about a circumference of the body. A plurality of slip buttons is positioned in a corresponding plurality of holes defined in the outer radial surface of the body. At least one of the wedge member and the barrel seal is made of a degradable material that degrades when exposed to a wellbore environment.Type: ApplicationFiled: April 1, 2015Publication date: February 8, 2018Applicant: Halliburton Energy Services, Inc.Inventors: Zachary William WALTON, Michael Linley FRIPP, John Charles GANO, Zachary Ryan MURPHEE, David Allen DOCKWEILER
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Publication number: 20170306723Abstract: An apparatus and method relating to down-hole production equipment for use in an oil well environment is provided. The apparatus and method are for selectively isolating fluid flow through a production packer or other down-hole tubular device. The apparatus and method use a ball valve, which is moved from an open position to a closed position by lateral or axial movement of the tubing string as opposed to by rotating the tubing string.Type: ApplicationFiled: December 17, 2014Publication date: October 26, 2017Applicant: Halliburton Energy Sevices, Inc.Inventor: David Allen DOCKWEILER
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Publication number: 20170183921Abstract: Disclosed is a drag block assembly for use with a downhole tool in a subterranean well, such as packers or bridge plugs. The drag block assembly comprises a generally cylindrically shaped sleeve and a block element. The block element is mounted to the sleeve such that it can radially slide. The block element is outwardly biased from the sleeve by an electromagnetic element.Type: ApplicationFiled: August 7, 2014Publication date: June 29, 2017Inventor: David Allen Dockweiler
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Publication number: 20160265303Abstract: Expansion sealing elements used to prevent fluid, flow through an annul us formed by tubing within the well and the wall of the wellbore or casing are provided. The expansion sealing elements are useful on downhole tools including those that need to be lowered through a first casing to be set in a second casing, which, has a larger diameter than the first casing.Type: ApplicationFiled: April 9, 2014Publication date: September 15, 2016Inventor: David Allen DOCKWEILER
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Publication number: 20160138362Abstract: A downhole tool for use in a well includes a mandrel, a sealing element disposed about the mandrel for engaging the well in a set position of the tool, a retaining shoe at one of the first and second ends of the sealing element, and a slip wedge disposed about the mandrel abutting the retaining shoe. The downhole tool includes components made by a 3-D printing process.Type: ApplicationFiled: February 5, 2014Publication date: May 19, 2016Inventor: David Allen Dockweiler